How do the eastern, northwestern, and southwestern topographic regions of China differ?

China can be divided into three major topographic regions based on geologic structure, climate, and geomorphology. These regions differ significantly in their physical characteristics:1

• Eastern Region: This area is characterized by low-lying hills and plains, mostly below 1,500 feet (450 meters) in elevation. It is shaped by river systems that have created extensive alluvial plains, such as the North China Plain. The climate is monsoonal, featuring seasonal, rain-bearing winds.12
• Northwestern Region: This is an arid, inland drainage basin. The landscape is heavily influenced by wind erosion and includes vast, dry areas like the Gobi and the Tarim Basin. It is generally remote, with limited precipitation and harsh, continental climatic conditions.134
• Southwestern Region: This is a cold, lofty, and mountainous zone. It is dominated by the Plateau of Tibet, the world’s highest highland area, which features intermontane plateaus, tangled mountain ranges, and inland lakes. The region’s extreme elevation is a result of the ongoing collision between the Indian and Eurasian tectonic plates.154